JP2019080215A - Display unit and method for controlling display unit - Google Patents

Abstract

To provide a technique that can inform a user of an image signal received by an input terminal, of input terminals receiving image signals, on which an image being displayed is based.SOLUTION: A display unit comprises: a plurality of input terminals that can receive image signals; a first display unit that displays, for each input terminal of the plurality of input terminals, whether the input terminals receive the image signals; an image display unit that displays, on a display screen, an image according to an image signal received by a selected input terminal selected from the plurality of input terminals; and a second display unit that indicates the selected input terminal.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a display device and a control method of the display device.

  Some display devices including a projector and the like include a plurality of input terminals. Patent Document 1 discloses a projector which indicates, for each input terminal of a plurality of input terminals, whether or not the input terminal receives an image signal.

Unexamined-Japanese-Patent No. 2010-200223

  However, in the above-described conventional display device, it is not possible to inform the user as to which input terminal among the input terminals receiving the image signal is based on the image signal received.

  The present invention makes it possible to inform the user of which input terminal is receiving an image signal among input terminals receiving an image signal. One.

In the display device according to the preferred aspect (first aspect) of the present invention, whether a plurality of input terminals capable of receiving an image signal and the input terminals receive the image signal for each of the input terminals of the plurality of input terminals And an image display unit for displaying an image according to an image signal received by the selection input terminal selected from the plurality of input terminals on the display surface, and the selection input terminal And a second display unit.
According to this aspect, the first display portion indicates which of the plurality of input terminals receives the image signal, and the second display portion indicates the selection input terminal. Therefore, it is possible to inform the user as to which input terminal among the input terminals receiving the image signal is based on the image signal being input.

In the preferable example (2nd aspect) of a 1st aspect, a said 1st display part has a 3rd display part for every said input terminal, The said 3rd display part is an input terminal corresponding to the said 3rd display part. Indicates whether the image signal is received or not, the second display unit has a fourth display unit for each of the input terminals, and the fourth display unit is an input terminal corresponding to the fourth display unit. Indicates whether the selection input terminal.
According to this aspect, it becomes possible for the user to easily recognize whether each of the input terminals receives an image signal and whether it is a selection input terminal.

In a preferred example of the second aspect (third aspect), the third display portion is a first light emitting portion, and the first light emitting portion is an input terminal corresponding to the first light emitting portion receiving the image signal. And a first light emission control unit that turns off when the input terminal corresponding to the first light emitting unit does not receive the image signal.
According to this aspect, since the first light emitting unit corresponding to the input terminal that receives the image signal is turned on, the user identifies the first light emitting unit that is turned on, whereby the image signal is selected among the plurality of input terminals. It is possible to easily grasp which input terminal is receiving the

In the preferable example (4th aspect) of a 2nd aspect or a 3rd aspect, the said 4th display part is a 2nd light emission part, The input terminal corresponding to the said 2nd light emission part is the said 2nd light emission part. It has a second light emission control unit that lights up when it is a selection input terminal and turns off when the input terminal corresponding to the second light emitting unit is not the selection input terminal.
According to this aspect, since the second light emitting unit corresponding to the selection input terminal is turned on, the user can easily grasp the selection input terminal.

In a preferred example of the second aspect (fifth aspect), the third display portion is a first light emitting portion, the fourth display portion is a second light emitting portion, and the first light emitting portion is Light that lights up when the input terminal corresponding to one light emitting unit receives the image signal, and lights up when the input terminal corresponding to the second light emitting unit is the selection input terminal The control unit has a lighting instruction receiving unit that receives a lighting instruction to turn on the first light emitting unit and the second light emitting unit, and the lighting control unit receives the lighting instruction from the lighting instruction receiving unit. In this case, at least one of the first light emitting unit corresponding to the input terminal not receiving the image signal and the second light emitting unit corresponding to the input terminal which is not the selection input terminal is lit in a predetermined color; The predetermined color in one light emitting unit is A color different from the color of light emitted from the first light emitting unit corresponding to the input terminal receiving the signal, and the predetermined color in the second light emitting unit is emitted by the second light emitting unit corresponding to the selection input terminal It is a color different from the color of light.
When the display device is in a dark place, there is a possibility that the third display unit and the fourth display unit become difficult to visually recognize. According to this aspect, the light having the predetermined color is at least one of the third display unit corresponding to the input terminal to which the image signal is not input and the fourth display unit corresponding to the input terminal not selected. It is possible to make the third display unit and the fourth display unit easier to view by lighting the light so as to emit light. Furthermore, the predetermined color in the first light emitting unit is a color different from the color of the light emitted from the first light emitting unit corresponding to the input terminal receiving the image signal, and the predetermined color in the second light emitting unit is a selection input It is a color different from the color of the light emitted from the second light emitting unit corresponding to the terminal. Therefore, by emitting light of a predetermined color, the user recognizes that the input terminal corresponding to the first light emitting unit to be lit with the light of the predetermined color does not receive an image signal, and the light of the predetermined color is used. It becomes possible to grasp that the input terminal corresponding to the second light emitting unit to be lit is not the selection input terminal.

In a preferable example (sixth aspect) of the second aspect, the third display portion is a first light emitting portion, the fourth display portion is a second light emitting portion, and the first light emitting portion is Light that lights up when the input terminal corresponding to one light emitting unit receives the image signal, and lights up when the input terminal corresponding to the second light emitting unit is the selection input terminal The control unit has a turn-off instruction reception unit that receives a turn-off instruction to turn off the first light emitting unit and the second light emission unit, and the light emission control unit receives the turn-off instruction by the turn-off instruction reception unit. The first light emitting unit corresponding to the input terminal receiving the image signal and the second light emitting unit corresponding to the selection input terminal are turned off.
According to this aspect, when it is desired to darken the location where the display device is installed, it is possible to extinguish the first light emitting unit corresponding to the input terminal receiving the image signal and the second light emitting unit corresponding to the selection input terminal. It becomes possible to darken the place where the display device is installed.

In a preferable example (a seventh aspect) of the second to sixth aspects, the fourth display part is arranged to be adjacent to a third display part corresponding to the input terminal corresponding to the fourth display part.
According to this aspect, since the third display unit and the fourth display unit corresponding to the input terminal corresponding to the third display unit are arranged adjacent to each other, does the input terminal receive an image signal? It becomes possible for the user to grasp at a glance whether or not it is a selection input terminal or not.

In a preferable example (eighth aspect) of the second aspect to the seventh aspect, there is provided a setting information reception unit that receives setting information indicating one or more input terminals of the plurality of input terminals, and an input indicated by the setting information The third display unit corresponding to the terminal stops indicating whether the image signal is received or not.
According to this aspect, it is possible to turn off the third display unit that the user has designated to turn off, thereby reducing power consumption.

In the preferable example (9th aspect) of the 1st aspect to the 8th aspect, the discrimination | determination part which discriminate | determines whether the said image signal is received for every said input terminal, It discriminate | determines whether the said image signal is received. Whether the image signal is received for each of the input terminals in accordance with the cycle indicated by the cycle information received by the cycle information receiving unit. Determine if it is not.
According to this aspect, in order to determine whether the input terminal receives an image signal according to a cycle specified by the user, it is possible to determine with an appropriate frequency according to the state of the image signal and the display device.

In the preferable example (10th aspect) of the 1st aspect to the 9th aspect, the said image signal contains several information regarding the image according to the said image signal, and the said image signal is received for every said input terminal. If the input terminal receives part of the plurality of pieces of information, the determination part determines that the input terminal receives the image signal.
According to this aspect, it is possible to suppress the load on the determination unit because the determination is made based on only part of the information without determining whether all of the plurality of pieces of information included in the image signal are included.

In the preferable example (11th aspect) of the 1st aspect to 10th aspect, it has the 1st production | generation part which produces | generates the image information which shows the image which shows whether the said image signal is received for every said input terminal, The image display unit displays an image indicated by the image information generated by the first generation unit on the display surface.
According to this aspect, even when the user can not visually recognize the first display unit, it is possible to browse the image displayed on the display surface and determine whether or not the input terminal receives a signal. .

In the preferable example (12th aspect) of the 1st aspect to the 11th aspect, the 2nd production | generation part which produces | generates the image information which shows the image which shows the information regarding the image signal which the said input terminal receives, The said 2nd production | generation part And a fifth display unit configured to display an image indicated by the generated image information.
According to this aspect, the user can know information related to the image that can not be known from the first display unit.

In a preferred embodiment of the first aspect to the twelfth aspect (13th aspect), the board has a slot into which the board can be inserted and removed, and the plurality of input terminals include input terminals of the board inserted into the slot.
According to this aspect, the user can determine whether the image signal is received or not for the input terminal of the board inserted in the slot, which is included in the plurality of input terminals, and whether the input terminal is the selection input terminal. It becomes possible to grasp easily.

A control method of a display device according to a preferable aspect (fourteenth aspect) of the present invention is a control method of a display device having a plurality of input terminals capable of receiving an image signal, and each input terminal of the plurality of input terminals The display indicates whether or not the image signal is received at the input terminal, and an image corresponding to the image signal received by the selection input terminal selected from the plurality of input terminals is displayed on the display surface, Indicates the selection input terminal.
According to this aspect, the display device indicates to which of the plurality of input terminals the image signal is input and the selection input terminal. For this reason, it is possible to inform the user as to which input terminal among the input terminals to which the image signal is input is based on the image signal being input.

FIG. 2 is a side view of the projector 100 according to the first embodiment. FIG. 2 is a plan view of the interface panel 10; FIG. 2 is a plan view of the operation panel 12; FIG. 1 is a configuration diagram of a projector 100. The figure which shows an example of the image P which the image information which the 1st generation part 251 generates shows. The figure which showed an example of the projection part 32. FIG. 6 is a flowchart for explaining the operation of the projector 100 (part 1). The flowchart for demonstrating the operation | movement of the projector 100 (the 2). The top view of the interface panel 10 in a 1st modification. FIG. 7 is a perspective view of a circuit board 70 including an interface board 60.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, in each drawing, the dimensions and the scale of each part are appropriately changed from the actual ones. Further, the embodiment described below is a preferable specific example of the present invention, and therefore, various technically preferable limitations are added, but the scope of the present invention particularly limits the present invention in the following description. As long as there is no statement of purport, it is not limited to these forms.

First Embodiment
FIG. 1 is a side view of the projector 100 according to the first embodiment. The projector 100 (an example of a display device) projects an image (hereinafter, referred to as a “projected image”) on the projection surface SC (an example of a display surface) illustrated in FIG. 4. The projector 100 includes an interface panel 10, an operation panel 12, and a projection lens unit 14. As shown in FIG. 1, the interface panel 10 and the operation panel 12 are located on the side of the projector 100. The projection lens unit 14 is located in front of the projector 100.

  The interface panel 10 is provided with a plurality of interfaces of the projector 100. The operation panel 12 is provided with various buttons and the like for performing operations on the projector 100. The projection lens unit 14 includes a projection lens 323 (see FIG. 6).

  In the following description, the direction parallel to the optical axis of the projection lens 323 is taken as the Y direction. In the Y direction, a direction from the center of the projector 100 toward the projection lens unit 14 is taken as a Y-axis positive direction. Two axes orthogonal to the Y axis and further orthogonal to each other are taken as an X axis and a Z axis. Regarding the X axis, a direction from the interface panel 10 and the operation panel 12 toward the center of the projector 100 is taken as a positive X axis direction. Regarding the Z axis, a direction from the surface on which the projector 100 is placed and placed toward the center of the projector 100 is taken as a Z axis positive direction.

  FIG. 2 is a plan view of the interface panel 10. The interface panel 10 has a plurality of input terminals 102 and two slots 105. The plurality of input terminals 102 are an SDI (Serial Digital Interface) terminal 102-1, a High Definition Multimedia Interface (HDMI) (registered trademark) terminal 102-2, a LAN (Local Area Network) terminal 102-3, and a BNC (Bayonet Neill). Concelman) terminal 102-4.

  In the following description, in order to distinguish between elements of the same type, reference symbols such as “SDI terminal 102-1” and “HDMI terminal 102-2” are used, and in the case where elements of the same type are not distinguished, “ As in the input terminal 102 ", only the common number among the reference symbols may be used.

  The input terminal 102 is a terminal capable of receiving an image signal. The slot 105 can insert and remove a board that extends the function of the projector 100. The aforementioned board is, for example, an interface board (an example of a board) having the input terminal 102. In the present embodiment, the interface board is not inserted into the slot 105.

  FIG. 3 is a plan view of the operation panel 12. The operation panel 12 includes a power on (on) button 121, a standby (standby) button 122, a first display 123, a second display 125, a status monitor 127 (example of a fifth display), an operation button 128, and a light. (Light) button 129 is provided.

  The power ON button 121 is a button for turning on the projector 100. The Standby button 122 is a button for setting the projector 100 in a standby state.

The first display unit 123 indicates, for each input terminal 102, whether or not the input terminal 102 receives an image signal.
The second display unit 125 shows the input terminal 102 selected as the selection input terminal from among the plurality of input terminals 102. The selection input terminal is an input terminal 102 on which an image according to the input image signal is projected on the projection surface SC. The selection input terminal is generally any one of input terminals receiving an image signal, but an input terminal not receiving an image signal may be a selection input terminal. For example, after the user turns on the power of the projector 100 and selects the input terminal 102 not receiving the image signal as the selection input terminal, a cable or the like may be connected to the selection input terminal so as to receive the image signal.

  The first display unit 123 will be described more specifically. The first display unit 123 includes, for each input terminal 102, a determination lamp 124 (an example of a third display unit and a first light emitting unit) corresponding to the input terminal 102. The determination lamp 124 indicates whether the input terminal 102 corresponding to the determination lamp 124 receives an image signal. For example, the discrimination lamp 124 lights in blue when the corresponding input terminal 102 receives an image signal, and turns off when the corresponding input terminal 102 does not receive an image signal. Blue is an example of the first color.

  Specifically, the first display unit 123 corresponds to the judgment lamp 124-1 corresponding to the SDI terminal 102-1, the judgment lamp 124-2 corresponding to the HDMI terminal 102-2, and the LAN terminal 102-3. It has a judgment lamp 124-3 and a judgment lamp 124-4 corresponding to the BNC terminal 102-4. Furthermore, the first display unit 123 includes a discrimination lamp 124-5 and a discrimination lamp 124-6. The determination lamp 124-5 corresponds to the input terminal 102 of the interface board inserted into the slot 105-1. The determination lamp 124-6 corresponds to the input terminal 102 of the interface board inserted into the slot 105-2.

  The second display unit 125 will be described more specifically. The second display unit 125 includes, for each input terminal 102, a selection button 126 (an example of a fourth display unit and a second light emitting unit) corresponding to the input terminal 102. The selection button 126 indicates whether the input terminal 102 corresponding to the selection button 126 is a selection input terminal. For example, the selection button 126 lights up in orange if the corresponding input terminal 102 is a selection input terminal, and turns off if the corresponding input terminal 102 is not a selection input terminal. Orange is an example of the second color. The selection input terminal is an input terminal 102 corresponding to the selection button 126 pressed by the user.

  Specifically, the second display unit 125 is a selection button 126-1 corresponding to the SDI terminal 102-1, a selection button 126-2 corresponding to the HDMI terminal 102-2, and a selection button corresponding to the LAN terminal 102-3. 126-3 and a selection button 126-4 corresponding to the BNC terminal 102-4. Furthermore, the second display unit 125 includes a selection button 126-5 and a selection button 126-6. The selection button 126-5 corresponds to the input terminal 102 of the interface board inserted into the slot 105-1. The selection button 126-6 corresponds to the input terminal 102 of the interface board inserted into the slot 105-2.

  As shown in FIG. 3, the selection button 126 is disposed adjacent to the discrimination lamp 124 corresponding to the input terminal 102 corresponding to the selection button 126. In the present embodiment, the selection button 126 is disposed adjacent to the position in the Y-axis positive direction as viewed from the determination lamp 124. Thus, the discrimination lamps 124 are intensively arranged in the vicinity of the selection button 126.

  When one of the plurality of input terminals 102 receives an image signal, the status monitor 127 displays an image indicating information on the image signal. As the status monitor 127, for example, an LCD (Liquid Crystal Display) is adopted. The operation button 128 is used to display a menu screen on the status monitor 127, move a cursor in the menu screen, and determine a button on the menu screen.

  The light button 129 lights at least the determination lamp 124 and the selection button 126 when the light button 129 is pressed. Furthermore, the light button 129 may light the status monitor 127 and the operation button 128. As a period which lights the lamp | ramp 124 for a determination, and the selection button 126, there exist the following two periods, for example, and any period may be employ | adopted among two periods. The first period is a period in which the light button 129 is pressed. The second period is a period from when the light button 129 is pressed until a predetermined time passes. In the following description, it is assumed that the second period is adopted.

  When the light button 129 is pressed, the discrimination lamp 124 lights in a predetermined color different from blue (first color) and orange (second color). For example, when the light button 129 is pressed, the discrimination lamp 124 lights in white as an example of a predetermined color. When the light button 129 is pressed, the color of the discrimination lamp 124, which is lit in blue, does not change. Similarly, when the light button 129 is pressed, the selection button 126 lights in a predetermined color different from blue (first color) and orange (second color). When the light button 129 is pressed, the color of the selection button 126, which is already lit in orange, does not change. For example, when the light button 129 is pressed, the selection button 126 lights in white as an example of a predetermined color.

  FIG. 4 is a block diagram of the projector 100. As shown in FIG. The projector 100 includes a signal receiving unit 20, an instruction receiving unit 22, an image processing unit 25, a first processing unit 26, a storage unit 28, a second processing unit 30, and a projection unit 32 (an example of an image display unit). And). The image processing unit 25 includes a first generation unit 251.

  The signal receiving unit 20 receives the signal received by the input terminal 102. The instruction receiving unit 22 includes a power ON button 121, a standby button 122, a selection button 126, an operation button 128, and a light button 129. The instruction accepting unit 22 accepts an instruction of the user by pressing each button described above.

  The image processing unit 25 performs image processing on the image signal input to the selection input terminal among the image signals received by the signal receiving unit 20 according to the control of the display control unit 262 described later in the first processing unit 26. To generate image information indicating a projection image to be projected on the projection surface SC.

  The first generation unit 251 generates first OSD image information indicating a first OSD (On Screen Display) image based on the determination result of the later-described determination unit 261 in the first processing unit 26. The first OSD image indicates, for each input terminal 102, whether or not the input terminal 102 receives an image signal. The first OSD image is, for example, an image representing the state of the determination lamp 124 (whether it is lit or not). The image processing unit 25 generates image information indicating a superimposed image in which the first OSD image is superimposed on the projection image.

  The first generation unit 251 further selects selected image information (for example, OSD image information indicating a selected image for selecting the input terminal 102 indicating whether or not an image signal is received from the plurality of input terminals 102). ) Also generate. An example of the selected image is shown using FIG.

  FIG. 5 shows an example of a selected image P (hereinafter simply referred to as "image P"). The image P includes a plurality of selection buttons 50 and a setting button 52. The plurality of selection buttons 50 and the setting button 52 can be selected by the operation button 128. As the plurality of selection buttons 50, the image P includes a selection button 50-x1 and a selection button 50-x2 corresponding to the input terminal 102-x. In the example of FIG. 5, x is a natural number from 1 to 3.

  One of the selection button 50-x1 and the selection button 50-x2 is selected. For the input terminal 102 for which the selection button 50-x1 is selected, it is indicated by the corresponding determination lamp 124-x whether or not an image signal is received. For the input terminal 102 for which the selection button 50-x2 is selected, it is indicated by the corresponding judgment lamp 124-x whether or not the image signal is received (hereinafter also referred to as "reception status display") is stopped Be done. When the setting button 52 is pressed, the first processing unit 26 generates the setting information 281 indicating the determination lamp 124 for stopping the reception state display based on the current selection state of the selection button 50, and the storage unit Store in 28.

It returns to the explanation of FIG.
The first processing unit 26 is a computer such as a CPU (Central Processing Unit). The first processing unit 26 may be configured by one or more processors. The first processing unit 26 reads and executes the control program stored in the storage unit 28 to thereby determine the determination unit 261, the display control unit 262, the lighting instruction reception unit 263, the setting information reception unit 264, and the cycle information. The reception unit 265 is realized. Note that the determination unit 261, the display control unit 262, the lighting instruction reception unit 263, the setting information reception unit 264, and the cycle information reception unit 265 are realized by one or more processors that constitute the first processing unit 26. It may be done. The image processing unit 25 may be realized by one or more processors.

  The determination unit 261 performs, for each input terminal 102, a determination process to determine whether the input terminal 102 receives an image signal. For example, there are the following two methods of discrimination processing. The first method is a method of determining that an image signal is input to the input terminal 102 when the input terminal 102 receives all of a plurality of pieces of information related to an image corresponding to the image signal. For example, the plurality of information included in the image signal received by the SDI terminal 102-1 is PLL (Phase Locked Loop) lock presence / absence information, resolution information, frequency information, payload ID (sampling method, color space, link information, etc.) . Also, for example, a plurality of information included in the image signal received by the HDMI terminal 102-2 is a connection detection signal, clock presence / absence, synchronization signal presence / absence information, resolution information, frequency information, InfoFrame information (color space, pixel repeat information, etc.) It is.

  The second method is a method of determining that the input terminal 102 receives a video signal when the input terminal 102 receives a part of a plurality of pieces of information related to an image according to the image signal. For example, when the SDI terminal 102-1 receives PLL lock presence / absence information, the determination unit 261 determines that the SDI terminal 102-1 receives an image signal. When the HDMI terminal 102-2 receives a connection detection signal or synchronization signal presence / absence information, the determination unit 261 determines that the HDMI terminal 102-2 receives an image signal.

  The display control unit 262 causes the projection unit 32 to execute a process of projecting a projection image according to the image signal input to the input terminal selected as the selection input terminal on the projection surface SC and displaying the projection image. More specifically, the display control unit 262 also controls the image processing unit 25 to cause the projection unit 32 to display a projection image on the projection surface SC.

  The lighting instruction receiving unit 263 receives a lighting instruction to light the first display unit 123 (see FIG. 3) and the second display unit 125 (see FIG. 3). For example, when the user presses the light button 129, the lighting instruction receiving unit 263 receives the pressing of the light button 129 as the above-described lighting instruction.

  The setting information accepting unit 264 accepts setting information 281 indicating the determination lamp 124 for stopping the acceptance state display. As shown in FIG. 4, the setting information 281 is stored in the storage unit 28. The setting information 281 has, for example, two modes. The setting information 281 in the first mode indicates the ID of the judgment lamp 124 for stopping the reception state display. The setting information 281 in the second mode indicates, for each of the determination lamps 124, a value indicating whether to stop the reception state display. The setting information 281 is generated by the operation of the operation button 128 by the user or the like as described with reference to FIG. 5, and is stored in the storage unit 28. The determination lamp 124 indicated by the setting information 281 stops indicating whether the corresponding input terminal 102 receives an image signal.

The cycle information reception unit 265 receives cycle information 282 indicating a cycle for determining whether or not an image signal is received. As shown in FIG. 4, the cycle information 282 is information stored in the storage unit 28. The cycle information 282 has, for example, two modes. Period information 282 in the first aspect indicates a period for each input terminal 102. The cycle information 282 in the second mode indicates a uniform cycle at the input terminal 102. The cycle is, for example, one second or ten seconds. The cycle information 282 is generated by the operation of the operation button 128 by the user or the like, and is stored in the storage unit 28.
When the cycle information reception unit 265 receives the cycle information 282, the determination unit 261 determines whether the image signal is received for each input terminal 102 in the cycle indicated by the cycle information 282.

  The storage unit 28 is a computer readable recording medium. The storage unit 28 is, for example, a flash memory. The storage unit 28 is not limited to the flash memory and can be appropriately changed. The storage unit 28 stores, for example, various information including setting information 281 and cycle information 282 and programs executed by the first processing unit 26 and the second processing unit 30.

  The second processing unit 30 is a computer such as a CPU. The second processing unit 30 may be formed by one or more processors. The second processing unit 30 implements the first light emission control unit 301, the second light emission control unit 302, and the second generation unit 303 by reading and executing the control program stored in the storage unit 28. The first light emission control unit 301 and the second light emission control unit 302 are included in the light emission control unit 304. The first light emission control unit 301, the second light emission control unit 302, and the second generation unit 303 may be realized by one or more processors forming the second processing unit 30. Alternatively, each unit included in the first processing unit 26 and the second processing unit 30 may be realized by the same processor. Alternatively, the projector 100 may have a multi-core processor in which one processor has a plurality of processor cores, and the first processing unit 26 and the second processing unit 30 may be different processor cores included in the multi-core processor.

  The first light emission control unit 301 turns on the determination lamp 124 when the input terminal 102 corresponding to the determination lamp 124 receives an image signal, and the input terminal 102 does not receive an image signal. Control to turn off. The first light emission control unit 301 uses the determination result of the determination unit 261 as to whether or not the input terminal 102 receives an image signal. As shown in FIG. 4, the determination lamp 124 includes a light emitting diode (LED) 124 x-1 and an LED 124 x-3. x is the value at the end of the reference symbol of the discrimination lamp 124. For example, since the value at the end of the reference symbol of the determination lamp 124-1 is 1, the determination lamp 124-1 includes the LED 1241-1 and the LED 1241-3. The LED 124 x-1 and the LED 124 x-3 are light sources that emit light of different colors. The LED 124x-1 lights in blue, and the LED 124x-3 lights in white. A white-lit LED can be produced, for example, by combining a yellow-emitting phosphor with a blue light-emitting diode.

  For example, when the SDI terminal 102-1 receives an image signal, the first light emission control unit 301 turns on the LED 1241-1 to light the discrimination lamp 124 in blue.

  Furthermore, in the description of the setting information reception unit 264, the judgment lamp 124 indicated by the setting information 281 describes stopping the display of the reception state. In order to realize the above description, in the first light emission control unit 301, even if the input terminal 102 corresponding to the discrimination lamp 124 receives an image signal, the discrimination lamp 124 indicates the setting information 281. If it does, the discrimination lamp 124 is turned off.

  The second light emission control unit 302 lights the selection button 126 when the input terminal 102 corresponding to the selection button 126 is a selection input terminal, and turns off the light when the input terminal 102 is not a selection input terminal. As shown in FIG. 4, the selection button 126 has an LED 126 x-2 and an LED 126 x-4. x is the value at the end of the reference symbol of the selection button 126. For example, since the value at the end of the reference symbol of the selection button 126-1 is 1, the selection button 126-1 includes the LED 1261-2 and the LED 1261-4. The LED 126x-2 and the LED 126x-4 are light sources that emit light of different colors. The LED 126x-2 lights in orange, and the LED 126x-4 lights in white.

  For example, when the SDI terminal 102-1 is a selection input terminal, the second light emission control unit 302 lights the selection button 126-1 in orange by lighting the LED 1261-2.

  In the light emission control unit 304, when the lighting instruction receiving unit 263 receives a lighting instruction, the determination lamp 124 corresponding to the input terminal 102 not receiving the image signal and the selection button 126 corresponding to the input terminal 102 not the selection input terminal. And light in different colors from blue and orange.

  For example, when receiving the lighting instruction, the first light emission control unit 301 maintains the lighting of the LED 124x-1 corresponding to the input terminal 102 receiving the image signal and maintains the lighting of the LED 124x-3. On the other hand, the first light emission control unit 301 keeps the LED 124 x-1 corresponding to the input terminal 102 not receiving the image signal turned off and lights the LED 124 x-3. Similarly, when the second light emission control unit 302 receives the lighting instruction, the second light emission control unit 302 maintains the lighting of the LED 126x-2 corresponding to the selection input terminal and maintains the lighting of the LED 126x-4. On the other hand, the second light emission control unit 302 keeps the LED 126x-2 corresponding to the input terminal 102 which is not the selection input terminal turned off and lights the LED 126x-4.

For example, it is assumed that the SDI terminal 102-1, the HDMI terminal 102-2, and the LAN terminal 102-3 receive an image signal, and the BNC terminal 102-4 does not receive an image signal, and the SDI terminal 102-1 selects an input. It is assumed that it is a terminal.
Under this premise, when receiving the lighting instruction, the first light emission control unit 301 maintains the lighting of the LED 1241-1, the LED 1242-1 and the LED 1243-1 and turns off the LED 1241-3, the LED 1242-3 and the LED 1243-3. Maintain. As a result, the discrimination lamp 124-1, the discrimination lamp 124-2, and the discrimination lamp 124-3 light in blue. Further, the first light emission control unit 301 keeps the LED 1244-1 turned off and lights the LED 1244-3. As a result, the discrimination lamp 124-4 lights in white.
Similarly, when the second light emission control unit 302 receives the lighting instruction, the second light emission control unit 302 maintains the lighting of the LED 1261-2 and maintains the lighting of the LED 1261-4. Thereby, the selection button 126-1 lights up in orange. Further, the second light emission control unit 302 keeps the LED 1262-2, the LED 1263-2, and the LED 1264-2 off, and turns on the LED 1262-4, the LED 1263-4, and the LED 1264-4. As a result, the selection button 126-2, the selection button 126-3 and the selection button 126-4 light in white.
When the lighting instruction is received, the discrimination lamp 124-5, the discrimination lamp 124-6, the selection button 126-5, and the selection button 126-6 may be lit in white or may be extinguished. Good.

  When the input terminal 102 receives an image signal, the second generation unit 303 generates image information (hereinafter, referred to as “first image information”) indicating an image indicating information related to the image signal. The information on the image signal is, for example, at least one of the resolution of the image signal and the frequency of the image signal. An image indicating information on an image signal is, for example, an image indicating numerical values such as the resolution of the image signal and the frequency of the image signal. Specifically, the second generation unit 303 acquires information on the image signal from the image processing unit 25. Next, the second generation unit 303 generates first image information from the acquired information. The second generation unit 303 outputs the generated first image information to the status monitor 127. The status monitor 127 displays an image indicated by the first image information.

  The projection unit 32 projects the projection image indicated by the image information generated by the image processing unit 25 on the projection surface SC according to the control of the first processing unit 26. The configuration of the projection unit 32 will be described with reference to FIG.

  FIG. 6 is a view showing an example of the projection unit 32. As shown in FIG. The projection unit 32 includes a light source 321, three liquid crystal light valves 322 (322R, 322G, 322B) which are an example of a light modulation device, a projection lens 323 which is an example of a projection optical system, a light valve drive unit 324 and the like. Including. The projection unit 32 modulates the light emitted from the light source 321 with the liquid crystal light valve 322 to form a projection image (image light), and projects the projection image from the projection lens 323 in an enlarged manner. The projection image is displayed on the projection surface SC.

  The light source 321 includes a light source portion 321a formed of a xenon lamp, an ultrahigh pressure mercury lamp, an LED, a laser light source or the like, and a reflector 321b for reducing variation in the direction of light emitted by the light source portion 321a. In the light emitted from the light source 321, the dispersion of the luminance distribution is reduced by an integrator optical system (not shown), and thereafter, red (R) and green (G) which are the three primary colors of light by a color separation optical system (not shown). It is separated into blue (B) color light components. The R, G, and B color light components enter liquid crystal light valves 322R, 322G, and 322B, respectively.

  The liquid crystal light valve 322 is a liquid crystal panel in which liquid crystal is sealed between a pair of transparent substrates. The liquid crystal light valve 322 is formed with a rectangular pixel area 322a composed of a plurality of pixels 322p arranged in a matrix. The liquid crystal light valve 322 can apply a driving voltage to the liquid crystal for each pixel 322 p. When the light valve drive unit 324 applies a drive voltage according to the image information input from the image processing unit 25 to each pixel 322 p, each pixel 322 p is set to the light transmittance according to the image information. Therefore, the light emitted from the light source 321 is modulated by transmitting through the pixel region 322a, and a projection image according to the image information is formed for each color light.

  7 and 8 are flowcharts for explaining the operation of the projector 100. FIG.

  The determination unit 261 determines whether the cycle indicated by the cycle information 282 has elapsed from the time when the previous determination process was performed (step S1). If the cycle indicated by the cycle information 282 has not elapsed (step S1: No), the determination unit 261 executes the process of step S1 again. When the cycle indicated by the cycle information 282 has elapsed (step S1: Yes), the variable i is set to 1 (step S2), and the projector 100 inputs the process from step S3 to step S11 and step S21 to step S28. Repeat for several minutes of the terminal 102.

  The determination unit 261 determines whether the input terminal 102-i receives an image signal (step S 4). i is a natural number of 1 to 6. If it is determined that the input terminal 102-i receives an image signal (step S4: Yes), the second generation unit 303 generates image information (first image information) related to the input image signal (step S4). S5). Then, the second generation unit 303 causes the status monitor 127 to display an image indicated by the generated image information (step S6).

  Next, the first light emission control unit 301 determines whether the input terminal 102-i is indicated in the setting information 281 (step S7). The determination lamp 124-i corresponding to the input terminal 102-i shown in the setting information 281 stops indicating whether the input terminal 102-i receives an image signal. When the input terminal 102-i is not indicated in the setting information 281 (step S7: No), the first light emission control unit 301 turns on the discrimination lamp 124-i in blue (step S8).

  When it is determined that the input terminal 102-i does not receive an image signal (step S4: No), or when the input terminal 102-i is indicated in the setting information 281 (step S7: Yes), the first light emission The control unit 301 determines whether the light button 129 is pressed (step S9). When the light button 129 is pressed (step S9: Yes), the first light emission control unit 301 turns on the determination lamp 124-i in white (step S10).

  On the other hand, when the light button 129 is not pressed (step S9: No), the first light emission control unit 301 turns off the determination lamp 124-i (step S11).

  After performing the process of step S8, the process of step S10, or the process of step S11, the display control unit 262 and the second light emission control unit 302 determine whether the input terminal 102-i is a selection input terminal (step S21). ). As a specific determination method, for example, when the selection button 126 is pressed, the first processing unit 26 stores information indicating the pressed selection button 126 in the storage unit 28. The display control unit 262 and the second light emission control unit 302 refer to the above-described information (information indicating the pressed selection button 126) stored in the storage unit 28, and determine whether the input terminal 102-i is a selection input terminal. To judge.

  When the input terminal 102-i is the selection input terminal (step S 21: Yes), the display control unit 262 controls the image processing unit 25 and the projection unit 32 to generate a projection image according to the input image signal. The light is projected on the projection surface SC (step S22). The second light emission control unit 302 lights the selection button 126-i in orange (step S23).

  On the other hand, when the input terminal 102-i is not the selection input terminal (step S21: No), the second light emission control unit 302 determines whether the light button 129 is pressed (step S24). When the light button 129 is pressed (step S24: Yes), the second light emission control unit 302 turns on the selection button 126-i in white (step S25). On the other hand, when the light button 129 is not pressed (step S24: No), the second light emission control unit 302 turns off the selection button 126-i (step S26).

  After the process of step S23, the process of step S25, or the process of step S26 is performed, the variable i is set to i + 1 (step S27), and the processes of steps S3 to S11 and steps S21 to S28 are repeated.

  After repeating the processing from step S3 to step S11 and from step S21 to step S28 by the number of the input terminals 102, the determination unit 261 executes the processing of step S1 again.

In the projector 100 and the control method of the projector 100 according to the present embodiment, the first display unit 123 indicates whether or not an image signal is received for each input terminal 102, and the second display unit 125 includes a plurality of input terminals. A selection input terminal is shown out of 102. Thereby, the first display unit 123 indicates which of the plurality of input terminals 102 receives the image signal, and the second display unit 125 indicates the selection input terminal. Therefore, the user is notified that the projection image displayed on the projection surface SC is an image based on the image signal received by the input terminal 102 among the input terminals 102 receiving the image signal. It will be possible.
Also, by indicating which of the plurality of input terminals 102 receives the image signal, for example, when there is a failure in the image received by the selection input terminal, the user can select input to the other input terminal 102. Consider switching terminals. Before switching the selection input terminal, the user can browse the first display unit 123 to grasp which of the plurality of input terminals 102 receives an image signal.
Also, the user can distinguish and visually recognize whether or not the user is a selection input terminal and whether or not an image signal is received. Therefore, even if different image signals are received simultaneously and independently for the plurality of input terminals 102, the user can determine whether it is a selection input terminal or not and whether or not the image signals are received.

  In the present embodiment, the first display unit 123 includes, for each input terminal 102, a determination lamp 124 that indicates whether the input terminal receives an image signal, and the second display unit 125 includes the input terminal 102. Each time, it has selection button 126 which shows whether the input terminal is a selection input terminal. As a result, the user can browse the discrimination lamp 124 and the selection button 126 to grasp whether an image signal is received or whether it is a selection input terminal.

  In the present embodiment, the first light emission control unit 301 turns on the discrimination lamp 124 when the input terminal 102 corresponding to the discrimination lamp 124 receives an image signal, and the above-mentioned input terminal 102 is an image signal. Turn off when not accepted. By the way, when showing a positive aspect or a negative aspect according to lighting or extinguishing, it is how to show general information that lighting indicates a positive aspect. And if it is whether the image signal is received or not, it becomes a positive aspect that the image signal is received. Since the discrimination lamp 124 corresponding to the input terminal 102 receiving the image signal is turned on according to the general information indication method, the user has an input terminal receiving the image signal among the plurality of input terminals 102. It can be easily grasped which one is.

  In the present embodiment, the second light emission control unit 302 lights the selection button 126 when the input terminal 102 corresponding to the selection button 126 is a selection input terminal, and the above-described input terminal 102 is not a selection input terminal. Turn off. Here, if the input terminal 102 is a selection input terminal or not, it is a positive aspect that the input terminal 102 is a selection input terminal. Since the selection button 126 corresponding to the selection input terminal lights up according to the general information indication method, the user can easily grasp the selection input terminal.

In the present embodiment, when the light button 129 is pressed, at least the determination lamp 124 corresponding to the input terminal 102 not receiving the image signal and the selection button 126 corresponding to the input terminal 102 which is not a selection input terminal are white. Light. By the way, in order to make the image projected from the projector 100 clear, the projector 100 may be operated in a dark place. In this case, it is difficult to visually recognize the determination lamp 124 and the selection button 126 because of the dark place. Therefore, by lighting the discrimination lamp 124 and the selection button 126 in white, the user can easily visually recognize the discrimination lamp 124 and the selection button 126.
Further, by lighting in white, the user recognizes that the input terminal 102 corresponding to the discrimination lamp 124 lit in white light does not receive an image signal, and the input terminal corresponding to the selection button 126 lit in white light. It becomes possible to grasp that 102 is not a selection input terminal.

In the present embodiment, when the light button 129 is pressed, the lighting of the LED 124x-1 corresponding to the input terminal 102-x receiving the image signal is maintained, the lighting of the LED 124x-3 is maintained, and the image signal is received. While turning off the LED 124y-1 corresponding to the non-input terminal 102-y, the LED 124y-3 is turned on. Similarly, when the Light button 129 is pressed, the LED 126w-2 corresponding to the selection input terminal is kept on and the LED 126w-4 is kept off, and the LED 126z- corresponding to the input terminal 102-z which is not the selection input terminal. 2 is maintained and the LED 126z-4 is turned on. Even if the projector 100 is in a dark place, the discrimination lamp 124-x in which the LED 124 x-1 is lit can be viewed even if the LED 124 x-3 is turned off, so the LED 124 x-3 is turned off to reduce power consumption can do. Similarly, since the selection button 126-w for lighting the LED 126 w-2 can be visually recognized even when the LED 126 w-4 is turned off, the power consumption can be reduced by turning off the LED 126 w-4.
Furthermore, since the discrimination lamp 124-x corresponding to the input terminal 102 receiving the image signal lights the LED 124 x-1, when the LED 124 x-3 is also lit, the light of the LED 124 x-1 and the light of the LED 124 x-3 Mix. The user who sees the mixed light may misunderstand that the meaning is different from accepting the image signal. Therefore, turning off the LED 124x-3 can reduce the occurrence of the misunderstanding described above. Similarly, since the selection button 126-w corresponding to the selection input terminal lights the LED 126 w-2, when the LED 126 w-4 is also turned on, the light of the LED 126 w-2 and the light of the LED 126 w-4 mix. A user who sees mixed light may misunderstand that the meaning is different from the selection input terminal. Therefore, by turning off the LED 126 w-4, the misunderstanding described above can be made less likely to occur.

  In the present embodiment, the selection button 126 is disposed adjacent to the determination lamp 124. Since the selection button 126 and the discrimination lamp 124 are adjacent to each other, the user can grasp at a glance whether the image signal is accepted to the input terminal 102 and whether it is the selection input terminal. Become.

  In the present embodiment, the setting information 281 indicating the determination lamp 124 to stop indicating whether the image signal is received is received, and the determination lamp 124 indicated by the setting information 281 is input to the corresponding input terminal 102. Stop showing you whether or not you Thus, only the discrimination lamp 124 desired by the user can be turned on according to the use environment of the projector 100. For example, an image signal is always input to a certain input terminal 102, and it may not be necessary to turn on the discrimination lamp 124. In this case, by registering a certain input terminal 102 in the setting information 281, it is possible to prevent the discrimination lamp 124 corresponding to a certain input terminal 102 from being lit. As a result of not lighting the discrimination lamp 124, it is possible to prevent the user from presenting unnecessary information, and it is possible to suppress power consumption.

  In the present embodiment, it is determined whether an image signal is received for each input terminal 102 in accordance with the cycle indicated by the cycle information 282. As a result, since it is determined whether or not the input terminal 102 receives an image signal according to a cycle specified by the user, it is possible to determine with an appropriate frequency according to the state of the image signal and the display device.

  In the present embodiment, when the input terminal 102 receives part of a plurality of pieces of information related to an image according to an image signal, it is determined that the input terminal 102 receives an image signal. As described above, since it is determined based on only a part of information without determining whether all of the plurality of pieces of information are included, it is possible to determine in a short time and to suppress the load on the determination.

  In the present embodiment, an image indicating whether or not an image signal is received is projected on the projection surface SC. Even when the user has difficulty in visually recognizing the first display unit 123, it is possible to browse the image projected on the projection surface SC and determine whether or not the image signal is received by the input terminal 102. As a case where it is difficult for the user to view the first display unit 123, for example, during a presentation or an event, the user is located near the projection surface SC and is separated from the projector 100, and uses the remote control When the projector 100 is operated.

  In the present embodiment, an image indicating information on an image signal is displayed on the status monitor 127. As a result, the user can know information related to the image such as resolution, frequency and the like which can not be known from the first display unit 123.

<Modification>
Each of the above embodiments can be variously modified. The aspect of a specific deformation | transformation is illustrated below. Two or more aspects arbitrarily selected from the following exemplifications may be combined as appropriate within the range not mutually contradictory. In addition, about the element in which an effect | action or a function is equivalent to embodiment in the modification illustrated below, the code | symbol referred by the above description is diverted and detailed description of each is abbreviate | omitted suitably.

First Modification
In the present embodiment, the interface board is not inserted into the slot 105, but in the first modification, an example in which the interface board is inserted into the slot 105 is shown.

  FIG. 9 is a plan view of the interface panel 10 in the first modification. An interface board 60 is inserted into the slot 105-1 of the interface panel 10 in the first modification. The interface board 60 has a DVI (Digital Visual Interface) terminal 102-5 and an HDMI terminal 102-6. The DVI terminal 102-5 and the HDMI terminal 102-6 are included in the plurality of input terminals 102.

  FIG. 10 is a perspective view of the circuit board 70 including the interface board 60. As shown in FIG. In FIG. 10, the circuit board 70, the circuit board 80, and the interface board 60 are drawn. The first processing unit 26, the second processing unit 30, and the like are mounted on the circuit board 70. Circuit board 70 and interface board 60 are electrically connected via circuit board 80.

  In the projector 100 and the control method of the projector 100 according to the first modification, whether the first display unit 123 also receives an image signal also for the input terminal 102 of the interface board inserted into the slot 105. Indicates As described above, the user can easily grasp whether an image signal is received or not and whether it is a selection input terminal, including the input terminal 102 of the interface board 60. Even in the case of having the function expansion slot 105 as in the projector 100, the user can input an image signal to any interface board having any input terminal 102 regardless of the type of interface board. It can be grasped whether it is accepted or not.

  In the first modified example, a method will be described in which the first display unit 123 indicates whether or not an image signal is received at the input terminal 102 of the interface board 60. While the interface board 60 has two input terminals 102, the discrimination lamp 124 corresponding to the slot 105-1 has only one discrimination lamp 124-5, and the selection button 126 is also a selection button 126-5. There is only one. Therefore, the storage unit 28 sets interface board setting information for setting which of the two input terminals 102 of the interface board 60 the input terminal 102 corresponding to the determination lamp 124-5 and the selection button 126-5 is. Remember. The interface board setting information is generated, for example, by the operation of the operation button 128 by the user, and stored in the storage unit 28. A determination lamp 124-5 corresponding to the slot 105-1 indicates whether the input terminal 102 indicated by the interface board setting information receives an image signal. Similarly, the selection button 126-5 corresponding to the slot 105-1 indicates whether or not the input terminal 102 indicated by the interface board setting information is a selection input terminal.

Second Modified Example
In each of the above-described embodiments, in the projector 100, the corresponding determination lamp 124 and the selection button 126 are set in advance for the input terminal 102, but may be freely changed by the operation of the user. For example, in a situation in which the projector 100 has a plurality of HDMI terminals, the storage unit 28 selects one of the plurality of HDMI terminals, an HDMI terminal corresponding to one determination lamp 124-x and one selection button 126-x It stores the setting information to set whether or not. The setting information is generated, for example, by the operation of the operation button 128 by the user, and stored in the storage unit 28. The determination lamp 124-x indicates whether the HDMI terminal indicated by the setting information receives an image signal. Similarly, the selection button 126-x indicates whether the HDMI terminal indicated by the setting information is a selection input terminal. As described above, the usability of the projector 100 can be improved by indicating whether or not the image signal is received to the input terminal 102 desired by the user and whether or not the signal is the selection input terminal.

<Third Modification>
In each of the above-described embodiments, the first display unit 123 indicates whether the image signal is received or not by turning on and off, but the present invention is not limited to this. For example, when the first display unit 123 is an LCD, the LCD as the first display unit 123 displays an image indicating a character string indicating whether the input terminal 102 receives an image signal for each input terminal 102. May be Similarly, although the second display unit 125 indicates the selection input terminal by turning on and off, for example, an input in which the second display unit 125 is an LCD and the LCD which is the second display unit is a selection input terminal An image showing a character string indicating the terminal 102 may be displayed.

Fourth Modified Example
In each of the above-described embodiments, the discrimination lamp 124 indicates that the image signal is received by turning on and indicates that the image signal is not received by turning off, but the invention is not limited thereto. For example, the determination lamp 124 may indicate that the image signal is not received by lighting up, and may indicate that the image signal is received by turning off.

<Fifth Modification>
In each of the above-described embodiments, when the lighting instruction receiving unit 263 receives the lighting instruction, the light emission control unit 304 determines the discrimination lamp 124 corresponding to the input terminal 102 not receiving the image signal and the input terminal 102 which is not the selection input terminal. And / or the corresponding selection button 126 may be lit in white different from either blue or orange. For example, the light emission control unit 304 may maintain the turn-off of the selection button 126-x when a certain determination lamp 124-x is turned on in blue even if the turn-on instruction is received. The reason for keeping the light off is that the user can specify the position of the selection button 126-x without lighting the selection button 126-x. More specifically, the position of the selection button 126-x on the YZ plane is the position of the selection button 126 lit in orange in the Y direction and the position of the judgment lamp 124-x lit in blue. This is because the position of the selection button 126-x can be specified without lighting the selection button 126-x because it is indicated by the position of the direction.

<Sixth Modification>
In each of the above-described embodiments, the operation panel 12 may have a light off button. When the light off button is pressed, the light off button turns off the determination lamp 124 corresponding to the input terminal 102 receiving the image signal and the selection button 126 corresponding to the selection input terminal.

In the sixth modification, the first processing unit 26 has a light-off instruction reception unit in addition to the units shown in FIG. 4 by reading and executing the control program stored in the storage unit 28. The turn-off instruction reception unit receives a turn-off instruction to turn off the determination lamp 124 and the selection button 126. For example, when the user presses the light-off button, the light-off instruction receiving unit receives that the light-off button is pressed as the light-off instruction described above.
When the turn-off instruction receiving unit receives the turn-off instruction, the first light emission control unit 301 turns off the determination lamp 124 corresponding to the input terminal 102 receiving the image signal. Similarly, when the turn-off instruction receiving unit receives the turn-off instruction, the second light emission control unit 302 turns off the selection button 126 corresponding to the selection input terminal. Thereby, when it is desired to darken the location where the projector 100 is installed, the user presses the light off button to select the discrimination lamp 124 corresponding to the input terminal 102 receiving the image signal and the selection input terminal. The button 126 can be turned off. Therefore, it is possible to darken the place where the projector 100 is installed.

<Seventh Modified Example>
In each of the above-described embodiments, the discrimination lamp 124 and the selection button 126 have LEDs as light sources. However, the present invention is not limited to LEDs, and may have xenon lamps or the like.

Eighth Modified Example
In each form mentioned above, although 1st color was blue and 2nd color was orange, it is not restricted to this. The first color and the second color may be the same color.

<The 9th modification>
In each of the above-described embodiments, the predetermined color is white, but is not limited to white. Furthermore, the predetermined color in the discrimination lamp 124 may be a color different from the first color, and may be, for example, the second color. Similarly, the predetermined color in the selection button 126 may be a color different from the second color, and may be, for example, the first color.

<The tenth modification>
In each form mentioned above, although predetermined color is white and one LED was lit white, lighting of a plurality of LEDs may produce white light. For example, the determination lamp 124 has three LEDs of a blue LED, a green LED, and a red LED, and all three LEDs light up to light up the determination lamp 124 in white. It is also good. When the discrimination lamp 124 has the above-described three LEDs, when the discrimination lamp 124 is lit in blue, the blue LED of the above-mentioned three LEDs may be illuminated. The selection button 126 is also similar to the determination lamp 124.

<Eleventh Modification>
In each of the above-described embodiments, the selection button 126 is disposed adjacent to the position in the Y-axis positive direction as viewed from the determination lamp 124, but the present invention is not limited thereto. For example, the selection button 126 may be disposed adjacent to the position in the negative Y-axis direction as viewed from the determination lamp 124 or may be disposed adjacent to the position in the positive Z-axis direction. , Z-axis negative direction may be arranged adjacent to each other.

<Twelfth modified example>
In each embodiment described above, whether or not the image signal is received for each input terminal 102 is determined in the cycle indicated by the cycle information 282, but the present invention is not limited to this. For example, when the determination unit 261 receives an interrupt signal indicating that the signal at the input terminal 102 has changed, the determination unit 261 may determine whether an image signal is received. For example, when the processor configuring the first processing unit 26 receives the above-described interrupt signal, the processor performs the processing of the determination unit 261 as an ISR (Interrupt Service Routine).

<The 13th modification>
In each of the above-described embodiments, as described above, the determination unit 261 can perform the first method or the second method described above. However, whether the first method is performed by operating the operation button 128 The user may select whether to execute the second method.

<Fourteenth Modified Example>
In each of the above-described embodiments, when there are many contents to be displayed and the image P does not fit into the image P shown in FIG. 5, the image P has a button indicating the next and a button indicating the next is operated. An image showing the contents to be displayed which did not fit into the image P may be displayed instead of the image P.

<Fifteenth Modification>
Although the liquid crystal light valve is used as the light modulation device in the projection unit 32 in each embodiment described above, the light modulation device is not limited to the liquid crystal light valve, and can be appropriately changed. For example, the light modulation device may be configured to use three reflective liquid crystal panels. The light modulation device may be configured as a method using one liquid crystal panel, a method using three digital mirror devices (DMD), a method using one digital mirror device, or the like. When only one liquid crystal panel or DMD is used as the light modulation device, members corresponding to the color separation optical system or the color combining optical system are not necessary. Moreover, the structure which can modulate the light which the light source emitted besides a liquid crystal panel and DMD is employable as a light modulation apparatus.

<Sixteenth Modification>
All or part of the elements realized by the execution of the program by the first processing unit 26 and the second processing unit 30 may be realized by an electronic circuit such as an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific IC). It may be realized by hardware, or may be realized by cooperation of software and hardware.

The Seventeenth Modification
In each form mentioned above, although a display was a projector, it is not restricted to this. For example, each form mentioned above can apply even if a display apparatus is LCD. In this case, the image display unit is a liquid crystal screen.

  10 interface panel 12 operation panel 14 projection lens unit 20 signal receiving unit 22 instruction receiving unit 25 image processing unit 26 first processing unit 28 storage unit 30 second Processing unit, 32: Projection unit, 50: Selection button, 50: Multiple selection button, 52: Setting button, 60: Interface board, 100: Projector, 102: Input terminal, 123: First display unit 124: For determination Lamp 125 second display unit 126 selection button 251 first generation unit 261 determination unit 262 display control unit 263 lighting instruction reception unit 264 setting information reception unit 265 cycle information Reception unit, 301 ... first light emission control unit, 302 ... second light emission control unit, 303 ... second generation unit, 304 ... light emission control unit.

Claims (14)

A plurality of input terminals capable of receiving image signals;
A first display unit that indicates, for each input terminal of the plurality of input terminals, whether or not the input terminal receives the image signal;
An image display unit for displaying on a display surface an image according to an image signal received by a selection input terminal selected from among the plurality of input terminals;
A second display unit indicating the selection input terminal;
And a display device characterized by including. The first display unit has a third display unit for each of the input terminals,
The third display unit indicates whether an input terminal corresponding to the third display unit receives the image signal or not.
The second display unit has a fourth display unit for each of the input terminals,
The fourth display unit indicates whether an input terminal corresponding to the fourth display unit is the selection input terminal.
The display device according to claim 1, The third display unit is a first light emitting unit,
The first light emitting unit is turned on when the input terminal corresponding to the first light emitting unit receives the image signal, and the input terminal corresponding to the first light emitting unit does not receive the image signal. The display apparatus according to claim 2, further comprising: a first light emission control unit that turns off the light. The fourth display unit is a second light emitting unit,
The second light emitting unit is turned on when the input terminal corresponding to the second light emitting unit is the selection input terminal, and is turned off when the input terminal corresponding to the second light emitting unit is not the selection input terminal 2. The display device according to claim 2 or 3, further comprising: a light emission control unit. The third display unit is a first light emitting unit,
The fourth display unit is a second light emitting unit,
The first light emitting unit is turned on when the input terminal corresponding to the first light emitting unit receives the image signal, and the second light emitting unit is selected when the input terminal corresponding to the second light emitting unit is selected A light emission control unit that lights up when it is an input terminal;
And a lighting instruction receiving unit that receives a lighting instruction for lighting the first light emitting unit and the second light emitting unit,
The light emission control unit, when the lighting instruction receiving unit receives the lighting instruction, a first light emitting unit corresponding to an input terminal not receiving the image signal, and a second light emitting unit corresponding to an input terminal not the selection input terminal Lighting at least one of the light emitting parts in a predetermined color,
The predetermined color in the first light emitting unit is a color different from the color of light emitted from the first light emitting unit corresponding to the input terminal receiving the image signal, and the predetermined color in the second light emitting unit is A color different from a color of light emitted from the second light emitting unit corresponding to the selection input terminal;
The display device according to claim 2, characterized in that: The third display unit is a first light emitting unit,
The fourth display unit is a second light emitting unit,
The first light emitting unit is turned on when the input terminal corresponding to the first light emitting unit receives the image signal, and the second light emitting unit is selected when the input terminal corresponding to the second light emitting unit is selected A light emission control unit that lights up when it is an input terminal;
And a turn-off instruction reception unit that receives a turn-off instruction to turn off the first light emitting unit and the second light emitting unit,
The light emission control unit, when the turn-off instruction reception unit receives the turn-off instruction, the first light emission unit corresponding to the input terminal receiving the image signal, and the second light emission unit corresponding to the selection input terminal Turn off,
The display device according to claim 2, characterized in that: The fourth display unit is disposed adjacent to a third display unit corresponding to an input terminal corresponding to the fourth display unit.
The display device according to any one of claims 2 to 6, characterized in that: It has a setting information receiving unit that receives setting information indicating one or more input terminals of the plurality of input terminals,
The third display unit corresponding to the input terminal indicated by the setting information stops indicating whether the image signal is received or not.
The display device according to any one of claims 2 to 7, characterized in that: A determination unit that determines whether the image signal is received for each of the input terminals;
A cycle information reception unit that receives cycle information indicating a cycle for determining whether the image signal is received or not;
Have
The determination unit determines whether the image signal is received for each of the input terminals according to a cycle indicated by the cycle information received by the cycle information reception unit.
The display device according to any one of claims 1 to 8, characterized in that. The image signal includes a plurality of information on an image according to the image signal,
The apparatus has a determination unit that determines whether the image signal is received for each of the input terminals,
The determination unit determines that the input terminal receives the image signal when the input terminal receives part of the plurality of pieces of information.
The display device according to any one of claims 1 to 9, characterized in that: A first generation unit configured to generate image information indicating an image indicating whether the image signal is received for each of the input terminals;
The image display unit displays an image indicated by the image information generated by the first generation unit on the display surface.
The display device according to any one of claims 1 to 10, characterized in that: A second generation unit configured to generate image information indicating an image indicating information on an image signal received by the input terminal;
A fifth display unit for displaying an image indicated by the image information generated by the second generation unit;
The display device according to any one of claims 1 to 11, comprising: Has a slot into which the board can be inserted and removed,
The plurality of input terminals include input terminals of a board inserted into the slot.
The display device according to any one of claims 1 to 12, characterized in that: A control method of a display device having a plurality of input terminals capable of receiving an image signal, the control method comprising:
Each input terminal of the plurality of input terminals indicates whether the image signal is received at the input terminal,
An image corresponding to the image signal received by the selection input terminal selected from the plurality of input terminals is displayed on the display surface,
Indicating the selection input terminal,
And controlling the display device.

Images